Mama drama!

Teen Mom 2 stars Chelsea Houska and Jenelle Evans have been in competition for a while — especially after they gave birth within days of each other! But even though Chelsea denied that the girls have any bad blood between them, Jenelle decided to go ahead and reignite their feud with one single tweet.

“Super hilarious when people think their sh– don't stink. All sh– stinks. You are no different than the rest of us sweetheart,” Jenelle tweeted on Feb. 27, and even though she didn’t @ Chelsea directly — fans know the message was meant for her.

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One word: precious. 👦🏻👦🏼👶🏼💕

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MTV has been flying the Teen Mom franchise stars out to LA over the past few weeks to take part in a live aftershow on Monday nights. Jenelle originally said she wouldn’t attend the aftershow because she didn’t want to leave her newborn daughterEnsley Jolie — behind, but she revealed that she changed her mind and decided to go after all. Fans immediately criticized her parenting, and she defended herself.

“I asked her doctor and her doctor said the air pressure was not good for her head. I tried to tell MTV I couldn’t go but still have to go,” Jenelle wrote.

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My babes😍

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But Chelsea — who also has a newborn son, Watson — responded to another fan on Twitter, and explained that MTV wouldn’t force a mother to leave her newborn baby behind for contract obligations.

“They were very understanding of me not leaving Watson or flying before he has shots,” Chelsea tweeted, adding a smiley face.

“Watson isn’t leaving mama’s side for a long time yet! We barely have left the house lol,” she continued, adding the hashtag “#BondingTime” — and it seems like that was the tweet that prompted Jenelle to fire back.

Scroll through the gallery below to see more Teen Mom cast feuds!